The JBO Thread Ring Gauge (GO) is a precision go gauge designed for metric coarse threads, specifically engineered to check external thread diameters and confirm parts meet exact specifications. It’s an essential tool for quality control, precision machining, and assembly workflows, helping engineers, machinists, and inspectors quickly verify correct thread engagement and fit.

Crafted from hardened steel for outstanding durability, this GO gauge is built to withstand daily use in busy shop environments. The Right Hand configuration and 6h class, tailored to M1.6 x 0.35 coarse threads, deliver reliable, repeatable measurements with a simple, user-friendly design that fits naturally into standard inspection routines.

• Durable hardened steel construction: Long tool life with resistance to wear, keeping measurements stable through repeated use.
• Precise GO gauge for metric coarse threads (M1.6 x 0.35): Provides quick, reliable pass/fail checks to confirm external thread diameter and proper mating.
• User-friendly, repeatable checks: Easy to use in daily QC workflows, helping reduce inspection time and minimize rework.

Used in production lines, inspection labs, and workshop settings, this gauge helps you verify thread quality with confidence, accelerate your quality checks, and ensure consistent results across batches. It supports efficient workflows by delivering dependable measurements that align with standard metric coarse thread specifications.